re PR tree-optimization/22422 (ICE in first_vi_for_offset, at tree-ssa-structalias.c:2843)
2005-07-12 Daniel Berlin <dberlin@dberlin.org> Fix PR tree-optimization/22422 * tree-ssa-structalias.c (struct variable_info): Add flag for special vars. (get_varinfo): Now a static function. (new_varinfo): init has_union and is_special_var to false. (solution_set_add): Check has_union. (do_da_constraint): Move temporary variable so it gets reset properly. Also check for special variable. (do_ds_constraint): Ditto. (do_sd_constraint): Ditto. (do_structure_copy): Check for special variable. (find_func_aliases): Ditto. (init_base_vars): Set special vars properly. From-SVN: r101959
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